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`R. G. COLLINS. ROTARYv SWAGING MACHINE.

No. 440,304. Patented Nov. 11,1890.

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ROTARY SWAGING MACHINE. l No. 440,304. Patented NOV. 11, 1800.

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R. G. COLLINS. ROTARY sWAelNe MACHINE.

No. 440,304. Patented Nov. 11, 1890.

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(No Model.) 4 Sheets-Sheet 4.

R. G. COLLINS. ROTARY SWAGING MACHINE.

No. 440,304. Patented Nov. 11, 1890.

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UNITED STATES PATENT EEICE.

REUBEN G. COLLINS, OF DOLLAR BAY, MICHIGAN, ASSIGNOR-TO THE TAMA- RACKOSCEOLA COPPER MANUFACTURING COMPANY, OF SAME PLACE.l

ROTARY SWAGING-NIACHIN E.

SPECIFICATION forming part of Letters Patent No. 440,304, dated November11, 1890.

Application filed Iuly 17, 1890. Serial No. 359,100. (No model.)

T all 1071/0771/ if may 0011100772.' t-hus neutralize or check thetendency of the Be it known that I, REUBEN G. COLLINS, a citizen of theUnited States, residing at Dollar Bay,in the county of Houghton andState of Michigan, have made certain new and useful Improvements inRotary Swaging-Machines, which improvements are fully set forth anddescribed in the following specilicat-ion, reference being had to theaccompaio nying four sheets of drawings.

This invention relates to that class of machines for drawing down rodsof metal in which swiftly-rotating swages are employed, these swages ordies being forced together at stated times by contact with a series ofrollers placed in their annular path.

Heretofore, so far as I am familiar with this class of machinery, it hasbeen necessary to stop the revolving head or die-carrier whenzo evernecessary to bring into use another set of dies, thus wasting more (orless time and increasing proportionately the cost of the work performed;but in my present improved form of rotary swaging-machine such changes 25 of dies may be effected without stopping the machine or hindering itswork.

Another serious defect in this class of machines has existed in thearrangement of the series of rolls which engage the hammers to move thedies or swages into operative contact with the Wire. A single series ofrolls has been employed, which when rapidly engaged by the revolvinghammers are carried forward by the rolling contact of said hammers, andin consequence the blow of said hammers is prolonged, instead of being ashort quick stroke, as is desirable. This defect I overcome by providingtwo series (of equal number) of rolls arranged in concentric circles,those of one series being in radial alignment with those of thecompanion series. The rolls of the inner series receive the impact ofthe hammers, while the rolls of the outer series are backed by a solidring, against which they bear and roll while in use. This arrangement ofrolls causes each pair to act practically as a pair of gears, and whenthe rotary hammers engage the inner rolls and tend -to carry themforward the outer rolls, 5.o being reversed in their direction ofrotation, seek to travel in the backward direction, and

inner rolls to travel with the hammers.

In carrying into effect my improvements already referred to I have madevarious other 5 5' improvements in the details of my rotarysWaging-machine, all of which are described hereinafter.

My invention will be best understood by reading the followingspecification, in connec- 6o tion with the annexed drawings, in which-Figure I is an elevation of a sWaging-machine of my new construction,largely in vertical section; and Fig. 2 is a similar view with therevoluble head that carries the dies and hammers rotated a quarter of arevolution and with the mechanism that operates the turret-head ordie-carrier removed. Figs. 3 and 4 are respectively front and rear viewsof said machine. Fig. 5 is an inner face View 7o of one of theroller-supporting rings, and Fig.

6 a cross-section of the same on line a: on Fig. 7 is a perspectiveView, considerably enlarged, of one of the roller-shafts 3l. Fig. 8

is an enlarged sectional view of the end of lever 53, showing also thegroove-cam 55, by which said lever is moved.

In the drawings, IO denotes the supporting frame or standard of mymachine. (Here shown as a hollow casting with suitable base, 8o andbored at its upper portion to provide a bearing for the spindle 1l.)That portion of said spindle projecting to the rear of the machine (theright hand, as shown in Figs. 1 and 2) is reduced in diameter, and hassecurely 85 keyed thereto a driving-pulley l2, which is preferably ofconsiderable weight and serves as a balance-pulley.

Secured to the front of the machine-stand by bolts 13 is an annularcasting 14, that is 9o bored centrally to provide a cavity coincif dentwith the opening in the stand l0, that is to receive spindle 11, andsaid annular casting is also connterbored at its exposed end, as shownin Figs. l and 2, to receive the roller mechanism which I have describedbelow. Spindle 11 is held against longitudinal movement in one directionby a shoulder 15, thatv abuts the stand, and also by a ring-section 16,secured to said spindle at the rear end. Ioo The front end of thespindle (left hand, as shown) is formed with an enlarged head 17,

that is split lengthwise, and in the chamber or cavity thus provided islocated the turrethead or die-carrier 18, that forms one of theimportant features of my invention. This turret-head is axiallysupported on a screw 19, that may be introduced through either one of aseries of holes 2O in the ring-section. 14. The two faces of saidturrret-head are formed with central hubs 21, that are cut aspinion-gears, and said head is provided with a series of radialtransverse slots, in which are located the several sets or pairs ofswages or dies 22, said dies being held against accidental displacementby a small lateral slot in the turret-head, which receives a rib 23v onthe dies. Said dies are made of two blocks of steel, having theirconfronting faces provided with semicircular grooves, which when broughttogether form a two-part swage of the size to which it is desired todraw down the rod of wire.

The openings in the several sets of swages are of dierent sizes, and arepreferably arranged in such order that they may be successively broughtinto use, from the largest to the smallest opening, thus enabling theoperator to introduce the rod first to the swages with the largestopening, and then by bringing into use the next smaller in size to drawdown said wire until the desired reduction in diameter has beeneffected. The enlarged spindle-head 17, which carries the turret-head,isalso slotted at right angles to said turret-head to receive what I termhammers 24, whose inner ends rest on the ends of the set of dies thatare in operative position, and whose outer ends project slightly beyondthe perimeter of the spindle-head 17, as best seen in Fig. 3 of thedrawings. Hammers 24 are capable of limited endwise movementin theirslots or ways, but are prevented from leaving the head 17 (by lateraldisplacement) by a centrally-perforated plate 25, that is screwed to theend of said head. This plate is shown in Figs. l and 2, but is removedin Fig. 3, in which latter gure may be seen the holes 26, that receivethe screws by which said plate is clamped to said head.

It will now be understood that the spindle 11 as it rotates in itsbearings carries with it several sets of swages or dies held in thecircular holder 18, and that the rotation or partial rotation of saidcircular holder on its axis 19 will ybring either set or pair of diesinto proper position to receive and act upon the wire to be pointed.

Within the fixed annular casting 14 are two systems of rollers arrangedin concentric circles, the rollers of the two systems being in contact.Those of the outer system 27 bear at their periphery against the outerwall of the counterbored ring-shaped head 14, or

preferably against a steel bushing 27', and

rollers and are forced inward, carrying with them the swages that arebetween said hammers. The described rollers are supported between tworing-disks 29, (see Fig. 5,) having radial channels 30, in which thesquared ends of the roller-journals 3l are held. The outer and innerdisks 29 are securely tied together by rivets or screws 32, and therollers and their supports (ring-disks 29) are free to travel or rollforward in the counterbored head 14. As the hammers 24 pass around andengage rollers 28 of the inner system,the said rollers 28 are at firstinclined to travel with said hammers; but the contact of the perimetersof the inner rollers with the perimeters of the outer rollers acts, as Ihave stated above, substantially like a pair of gears and reverses thedirection of rotation of the outer rollers, thus checking the forward ortraveling movement of the complete systems of rollers and permitting thehammers to pass on beyond the inner rollers much quicker than where onlya vsingle system of rollers is provided.

To prevent the rollers and their supporting-rings 29 from leaving theirplace in the head 14, I provide a ring-disk 33, which is firmly fastenedto the outer face of said head by screws 34.

To limit the endwise movement of hammers 24, I provide in the outer faceof each a depression or hole to receive the tapered end of screws 35,tapped into the plate 25, said depressions or holes being somewhatlarger than the screw ends, being practically slots that allow a limitedmovement of said hammers. l

I have stated above that the die-holder 18 may be partially rotated tobring into service either ot' the several sets of dies.

I have provided what I believe to be novel mechanism for rotating saiddie-holder, consisting of a rod 36, arranged to move longitudinallythrough the center of spindle 11 or through a tube, hereinafterdescribed, and bearing an offset, forked end 37, that straddles thedie-holder and is formed with rackteeth that engage the toothed hubs 21.When rod 36 is moved longitudinally, the racks on fork 37 serve topartially rotate the die-holder on its axis 19, and thus bring anydesired pair of dies into position between the hammers.

To move rod 36 longitudinally, I provide the following-describedmechanism: On the outer end of said rod, at the rear of the machine, arefixed collars 38, between which is a loose collar 39, to which istrunnioned a forked lever 40, that is fulcrumed, as here shown, to alink or short arm 41, attached to a rigid partof the machine-frame. Theupper end of lever 40 is forked and trunnioned to a loose collar 42 on arod 43, supported in bearings 44 and capable of both lengthwise androtary movement. At each end'of loose collar 42 is a fixed collar 45.When rod 43 is moved lengthwise in its bearings, lever 40 acts to loo`rotate the die-holder.

correspondingly move the :rod 36, and thus An operating-handle 46 isprovided on rod 43, of such shape that said rod may be easily moved ineither a rotary or longitudinal direction.

I have found it desirable to provide a locking device by means of whichthe die-holder 18 may be positively held against rotation when the diesare in service, and which may also be operated Without stopping themachine. The die-holder is formed with a series of notches 47 in itsperiphery, corresponding in number with the pairs of dies. Pivoted inthe split head 17 is a dog 48, having at one side a projection 49, thatmay enter the said notches 47. Said dog is connected at its inner, endwith a tube 50, that passes through the spindle 11 and surrounds the rod36, above described. A slight endwise movement of tube serves towithdraw the projection 49 from the notch in thedie-holder, as will beunderstood by referring to Fig. 1 of the drawings. Tube 50 bears at itsexposed end a loose collar 51, supported on each side by lixed collars52, and trunnioned to a lever 53, substantially like the lever 40, firstabove described. The upper end of lever 53 terminates with a projectingstud 54, that engages a groove-cam 55 on the rod 43, said cam being heldagainst endwise movement by xed bearings that also serve as bearings forrod 45. When said rod 43 is rotated a half-turn, the lever 53 is rockedon its fulcrum, and thus moves tube 50 and dog 48, leaving thedie-holder or turret-head 18 free to be rotated to bring into service anew set of dies. After the described adjustment of said dieholder hasbeen made the operator grasps handle 46 and partially rotates rod 43 andthe cam 55, (which is splined on said rod,) when the projection 49 ondog 48 enters the coincident notch in the die-holder and again holds itagainst accidental displacement.

In Fig. 8 I have shown the stud 54, at the upper end of lever 53,arranged as a springpressed rod, this form being desirable where aconsiderable movement of lever 53 is required, as the spring acts toforce the stud outward as the lever swings out of vertical alignment,and insures a more perfect connection with the cam than would result ifthe stud was formed as a rigid part of the lever.

Inasmuch as the revoluble die-holder, dog, and rack mechanisms arelargely concealed, I have found it desirable to attach to the rod 43 anindex, by means of which any disired pair of dies may be quickly broughtinto position for use. This may be done by attaching to rod 43 a collarhaving an arc-shaped flange 57, which, as said rod is drawn forward torotate the die-holder 18, abuts one of a series of stops 58, that arehinged to a fixed part of the machine and are capable of being raisedout of the way or lowered into the path of said flange 57. If desired,the ends of said stops may be round and of sizes corresponding to theopenings iu the several sets of dies.

When it is desired to bring into service dies of a certain size-as, forexample, one-quarter of an inch in diameter-it is only necessary to dropinto the path of flange 57 the stop having a quarter-inch end or, ifpreferred, said stops may have stamped upon them the size of the dieswhich are to be used with them.

I have described two concentric series of rolls for operating thehammers; but it is obvious that inasmuch as only the inner seriesengages said hammers my turret-head dieholder could be used with saidVinner series alone; but I prefer to use the double form shown for thereasons stated. It should also be noted that said double system of rollscould be successfully used with rotary swages of the old form-that is,without my revoluble dieholder.

My machine as a whole occupies but little floor-space, is not expensiveto produce, and is so planned that all its adjustable parts are easilycontrolled by a single operator.

Having` described my invention, I claim- 1. In a swaging-machine,aspindle bearing a revoluble die-holder in turret-head form, the axis ofsaid die-holder being transverse to the axial center of said spindle, asand for the purpose specified.

2. In combination with a spindle, a revoluble die-holder located thereinwith its axis transverse to the axial center of said spindle, saiddie-holder bearing in radial peripheral slots a series of two-part dies,substantially as and for the purpose specified.

3. In a rotary swaging-machine, two concentric series of rolls, those ofthe inner series being in contact with those of the outer series, as setforth, the journals of said rolls being held in and between tworadially-slotted ringdisks, substantially as and for the purposespecified.

4. In combination with a spindle bearing a pair of dies movable in adirection transverse to the axial center of said spindle, acorresponding pair of hammers, as set forth, and two concentric seriesof rolls, as specitied,the rolls of the inner series being in theannular path of said hammers, as and for the purpose specified.

5. In a swaging-machine, in combination with a counterbored head 14,twoconcentric series of rolls supported in radially-slotted rings, as setforth, a bushing 27 between the outer series of rolls and the inner wallof said head, and a rin g-plate secured to the outer end of said head,all being substantially as and for the object set forth.

6. In a swaging-machine, aspindle bearing a revoluble die-holder inturret-head form whose axis is at right angles to the axial center ofsaid spindle, a pair of hammers supported in said spindle parallel withthe axis of said die-holder, and a series of rolls concentric with saidspindle located in the annular path of said hammers, substantially asand for the purpose specified.

7. A spindle bearing a revoluble die-holder,

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with its axis transverse to the aXial center of said spindle, saiddie-holder being notched at its periphery, as set forth, a dog with aprojection that maybe entered in either of said notches, and mechanism,substantially as described, for moving said dog into and out ofoperative engagement with said die-holder, for the purpose specified.

8. In a suitable supporting-frame, in combination, a spindle bearing arevoluble dieholder Whose axis is transverse to the axial center of saidspindle, said die-holder being formed with projecting hubs cut aspiniongears, a rod centrally located in said spindle, having its innerend forked and formed as racks that engage said hubs, and mechanism,substantially as described, for moving said rod and its forklongitudinally, for the purpose specified.

9. In combination with aspindle bearing a revoluble die-holder, rack andpinion mechanism, as set forth, for partially rotating said die-holder,and mechanism for moving the rack-rod longitudinally, consisting of arod 50, parallel with the spindle and connected to said rack-rod by alever, substantially as Y described.

l0. In combination with a spindle bearing a revoluble die-holder Wit-hnotched periphery, a dog adapted to be moved into and outof engagementwith said notches, a tube connected to said dog, centrally located insaid spindle, a rod 50, bearing a groove-cam, as set forth, and a leverconnecting said cam With said tube, substantially as and for the purposespecified.

ll. In combination with swaging mechanism of the form described, rod 50,capable of both rotary and longitudinal movement, lever-connections, asset forth, for connecting said rod with said swaging mechanism,.andmechanism, substantially as specified, for limiting the longitudinalmovement of rod 50, for the purpose specified.

REUBEN G. COLLINS.

Vitnesses:

WM. P. HARLOW, JOHN T. REEDER.

